How do I set Privacy Codes on the T50 Series?
Press the MENU button twice, then use the UP/DOWN buttons to select one of the 38 available CTCSS Privacy Codes. To confirm, press the PTT button or press MENU again to move to the next feature setting. Note that selecting 'oF' will disable the Privacy feature, and all radios in your group must use the same channel and Privacy Code to communicate.
From the official Midland X Talker T50 Series manual, page 9
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